Answer:
5 1/8 feets
Step-by-step explanation:
Given that:
PLAN A:
Length of post = 4.25 feets
Post must be 7/8 feets below the ground
Height of fence in PLAN A :
Converting 4.25 feets to decimal :
4.25 feets = 4 feets + 0.25 feets
0.25 feets = 1/4 feets
4 + 1/4 feets = 4 1/4 feets
4 1/4 feets + 7/8 feets
17 /4 feets + 7 /8 feets = [(34 + 7) / 8] feets
[(34 + 7) / 8] feets = 41/ 8 feets
41 / 8 feets = 5 1/8 feets
B
but i have to write more to let me post this so here it is
Answer:
x = 36.87 degrees.
Step-by-step explanation:
4 cos x + 3 sin x = 5
Use the Auxiliary angle method:
R sin (α + x) = R sin α cos x + R cos α sin x
Comparing coefficients:
R sin α = 4 and R cos α = 3
R sin α / R cos α = 4/3
So tan α = 4/3
α = 53,13 degrees.
Now R^2(sin^2 α + cos^2 α ) = 3^2 + 4^2 = 25
R^2 = 25
R = 5.
R sin (x + 53.13) = 5
5 sin ( x + 53.13) = 5
sin (x + 53.13) = 1
x + 53.13 = 90
x = 36.87 degrees.
First you would take 9 x 4 because there is four sides to a 3D piece of wood and then you would add the two 1's x 2 because you have two ends of 1 square inch each then, you would take the 5 and multiply it by 4 because you have four sides to a 3D piece of wood and add the two 1's x 2 <span> because you have two ends of 1 square inch each </span> and then add all of it together and you have your answer so it should look something like this ... 9 x 4 +2 +2 + 5 x 4 +2 + 2 = a total of 64 inches
Answer:
1200
Step-by-step explanation:
40 x 30=1200
